Champagne bottle



FIG. 1 is a front elevation of a champagne bottle;

FIG. 2 is a rear elevation of the champagne bottle;

FIG. 3 is a left-hand side elevation of the champagne bottle, the right-hand side elevation being a mirror image thereof, except for the writing on the labels; and,

FIG. 4 is a top plan view of the champagne bottle.

The portion of the bottom of the champagne bottle that is not shown in the drawings does not form part of the claimed design. 

The ornamental design for a champagne bottle, as shown and described. 